37db367c01e40ee2f05a5966d6670e07fd3292c01f4da8ffd77c0e3c96a79464

General

Target

deed contract.11.20.doc
Size

143KB
MD5

98ec9df6254d78b1fc1abdf7090da3f7
SHA1

6642cb5d474a9ed788fb5a33cc5b72c6f825c1f3
SHA256

37db367c01e40ee2f05a5966d6670e07fd3292c01f4da8ffd77c0e3c96a79464
SHA512

dfbc5ff2b935b905ad554b30994dc0446d93e0d8eaeb279ab33c376b35ff1cad6b21931da920c103ab435ac1c2968bcfcc8c3e0db2c3ae2222f5b86ab0460354

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	352	576	rundll32.exe	67

Blacklisted process makes network request 6 IoCs

flow	pid	Process
36	2344	rundll32.exe
38	2344	rundll32.exe
40	2344	rundll32.exe
42	2344	rundll32.exe
44	2344	rundll32.exe
46	2344	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2344	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	19	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
576	WINWORD.EXE
576	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2344	rundll32.exe
2344	rundll32.exe

Suspicious use of SetWindowsHookEx 18 IoCs

pid	Process
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE
576	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 576 wrote to memory of 352	576	WINWORD.EXE	79
PID 576 wrote to memory of 352	576	WINWORD.EXE	79
PID 352 wrote to memory of 2344	352	rundll32.exe	80
PID 352 wrote to memory of 2344	352	rundll32.exe	80
PID 352 wrote to memory of 2344	352	rundll32.exe	80

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\deed contract.11.20.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:576
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 C:\Users\Admin\AppData\Local\Temp\FpVjp.pdf,ShowDialogA -r
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:352
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32 C:\Users\Admin\AppData\Local\Temp\FpVjp.pdf,ShowDialogA -r
    3⤵
    - Blacklisted process makes network request
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:2344

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/576-0-0x00007FFC30440000-0x00007FFC30A77000-memory.dmp

Filesize
6.2MB

Download
memory/576-1-0x000002742C906000-0x000002742C909000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads